Improvement in grain-drills



U ITED STATES JOHN C. BAKER, OF MEOHANIOSBURG, OHIO.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of LettersPatent No. 186,407, dated January23, 1877; application filed November 8, 1876. i

To all whom it may concern:

Be it known that I, JOHN G. BAKER, of Mechanicsburg, in the county ofOhampaign and State of Ohio, have invented certain new and usefulImprovements in Grain -Drills; and

I do hereby declare the following to he a full, clear, and exactdescription of the invention, such as will enable others skilledin theart to which it pertains to make and use it, reference being had to theaccompanying drawing,

which form part of this specification.

My invention relates to grain-drills; and

consists in the peculiar combination of parts,

whereby pressure is applied to the drag-bars,

as hereinafter more fully set forth and claimed. In the drawing,representing a perspective view of a grain-drill embodying my invention,

A represents the frame, constructed of common gas-pipes or hollow tubesof iron, which renders the same very light, durable, and strong, andalso simplifies its construction,

the tubes or pipesbeing joined at the angles in the same manner as iscommonly employed in fitting gas-pipes.

As strength, lightness, and durability are desirable qualities in agrain-drill, it is obvious that the above-described c'onstructionpossesses great advantages over all known methods of construction.

B represents the axle, to which the frame is secured. O are thedrag-bars, pivoted to the front of the frame, and attached to the hoes Dof the drill. E is the springcarrying bar, pivoted to the sides of theframe. It. i 'has rigidly attached to it the arm G, and also the springsE. On the axle is placed the sleeve I, to which is rigidly secured thebellcrank lever K, to the lower arm of which is fastened the connectingrod or pitman L, the

other end of which attaches to the arm G of the spring-bar E. M is thelifting-bar, bent as shown in the drawing, the ends of which are pivotedto the sides of the frame. It is provided with the handle m, by which itis elevated or lowered. To said lifting-bar are attached, by chains orother'suitable means, the hoes D, which are placed in and out ofoperative position by raising or lowering said bar.

The manner of applying pressure to the drag-bars is as follows: Bydepressing the liftingbar M, so that the hoes are lowered to operativeposition, it operates on the upper ment to 'be very useful, in factindispensable,

for the purpose devised. v

When the lifting-bar M is raised, elevating the hoes, the drag-bars willpress against the springs, which will readily yield to the pressure byreason of the removal of the liftingbar from the arm of the bell-cranklever.

What I claimv as my invention, and desire to secure by Letters Patent,is-

l. The combination, with the main frame of a grain-drill,-pivoted so asto be adjusta-' ble in a vertical plane, of spring-pressed hoes, thelatter operated by the rear bell-crank lever; intermediateconnecting-link, and rear presser-bar, substantially as described.

2. In a grain-drill, the combination of dragbars 0 and spring-bar E,provided with springs H and arm Gr, with the pitman L,bell-crank leverK, and lifting-bar M, substantially as and for the purpose described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

. JOHN G. BAKER.

Witnesses E. J. MORGAN,

J A0013 '1. EARNEST.

PATENT @EErcE. A

